531068431 has 4 divisors (see below), whose sum is σ = 531332200. Its totient is φ = 530804664.

The previous prime is 531068401. The next prime is 531068441. The reversal of 531068431 is 134860135.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 531068431 - 2⁷ = 531068303 is a prime.

It is a super-2 number, since 2×531068431² = 564067356809603522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 531068393 and 531068402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531068401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128841 + ... + 132898.

It is an arithmetic number, because the mean of its divisors is an integer number (132833050).

Almost surely, 2^531068431 is an apocalyptic number.

531068431 is a deficient number, since it is larger than the sum of its proper divisors (263769).

531068431 is a wasteful number, since it uses less digits than its factorization.

531068431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263768.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 531068431 is about 23044.9220219987. The cubic root of 531068431 is about 809.8106710879.

The spelling of 531068431 in words is "five hundred thirty-one million, sixty-eight thousand, four hundred thirty-one".